Tractor cab



FIG. 1 is a right-side elevation view of a tractor cab showing the new design.

FIG. 2 is a front elevation view of the tractor cab.

FIG. 3 is a left-side elevation view of the tractor cab.

FIG. 4 is a back elevation view of the tractor cab; and,

FIG. 5 is a top plan view of the tractor cab.

Any elements of the tractor cab that are not clearly disclosed are not part of the claimed design. 

CLAIM The ornamental design for a tractor cab, as shown and described. 